Pulley



(No Model.)

W. J. INNIS.

PULLBY.

Patented Oct. 2, 1883.

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l i PULLEY..

SPECIFICATION forming part of Letters Patent No. 285,817, dated October 2, 1883,

Application filed August 1s, 1883. (No model.)

.To @ZZ whom t may concern:

Be it known that I, WILLIAM J. INNIs, a citizen of the IUnited States, residing at Oil City, in the county of Venango and State of Pennsylvania, have invented certain new and sections, showing modifications of a pulley constructed in4 accordance with my invention.

My Ainvention relates to band-pulleys, and is alsoapplicableto other wheels, the object being to construct such pulleys and wheels of wood disks, made of two or more thicknesses of veneer or thin planks, a wood rim, and a cast hub, so that they shall be strong and light at the same time; and my invention consists in certain features of construction, hereinafter described, and specifically pointed out in the claims.

Similar letters refer tosimilar parts throughout the several views.

The hub A consists of a lcasting suitably bored to iit a shaft upon the periphery ofthe hub, and cast integral therewith are one or two circular flanges, a, having one of their faces dressed radially to receive the inner edge or circumference of the eye of the disk B. These disks are made of two or more thicknesses of veneer or thin boards glued together.

with their grain crossing each other. They are pressed between forms, or in such amanner as to take and retain a concavo-convex or dished form but their inner and outer edges are preferably set at right angles to the axis of the hub and parallel to each other, to facilitate their attachment to the hub and to the rim of the wheel.

The disks B are secured to the circular flanges a of the hub by means of clampingrings a and bolts or rivets b. After being thus secured, the rim() is secured to the disks outer edge. The rim is formed either of transverse laggings c, as shown in Figs. 1, 2, and 3, united together by means of nails or pins c2, passing in a tangential `direction through one lagging and entering about half-way into the other, or of segments glued or primed together, as shown in Fig. 4.

To unite the disks to the rim the latter is rabbeted on the inside, adjoining the edges thereof, as shown at c3, and preferably provided with grooves c4, to receive the edges of the disks. The central interior portion, c', of the rim-is thus made to enter and be received between the two disks ofthe pulley, to which it can l then be glued, or to conveniently receive nails or screws c5,'driven into the outer edges of said disks, to unite them securely to the rim.

Two disks extending from the rim to the double-danged hub may be used, as shown in Fig. l, to construct the pulley; but pulleys may also have their hubs provided with asingle central flange and one of its wood disks, as shown at B2, Fig. 3, may not extend to the hub thereof, but be riveted, glued, or nailed, as at b, to the disk that extends from hub to rim.

Although the invention relates mainly to pulleys having wood disks made of two or more thicknesses of wood veneer and wood rim, it is closely related to pulleys having a wood'rim and metal disks, (shown in Fig. 4,) or pulleys having a metal rim, c2, and metal disks. (Shown in Fig. 5 of the present application and also in another application now allowed.) The outer edge of one disk is represented as flanged and riveted to the rim, and the other provided with a band of angleironfbg.

Having now fully described my invention, what I claim, is

1. A pulley constructed with a cast hub, wood disks made of more than one thickness, and a wood rim.

2. A pulley having c'oncavo-convex wood disks of more than one thickness of veneer or light board ce1nented orunited together, as described, in combinationwith a cast hub and wood rim, substantially as and for the purpose described.

3. A pulley having a concave-convex wood disk extending from the hub to the rim, and

asecondwood disk having its outer edge sesubstantially as and for the purpose de- 1o cured to the rim, and its inner edge secured scribed.

to the stem of the first disk, in combination In testimony whereof Iafx my signature in with a cast hub and a rim, substantially as presence of two Witnesses.

shown and described.

4. The combination of a cast hub, Wood VIALLXAM J INNIS' disks made of one or more thicknesses, and a Woodrim provided With circular rabbets or grooves to receive the outer edge of the disks,

Vitnesses:

C. W. Ross, GEORGE Ross. 

